John Albert Lynn is a military historian who has written on a wide variety of topics in his field, with an emphasis on early modern Europe. Born in Glenview, Illinois, in 1943, he received his Bachelor of Arts degree at the University of Illinois at Urbana-Champaign, his Master of Arts degree at the University of California, Davis, and his Ph.D. at UCLA. Lynn taught briefly at Indiana University and the University of Maine before joining the Department of History at the University of Illinois at Urbana-Champaign in 1978. During 1994-1995, he was the Oppenheimer Professor of Warfighting Strategy at the Marine Corps University at Marine Corps Base Quantico in Virginia. Retiring from the University of Illinois in 2009, he taught for three years at Northwestern University as Distinguished Professor of Military History. In 2012, he returned to the University of Illinois to teach part-time as Professor Emeritus of History.